Source : Webster's Revised Unabridged Dictionary (1913)

Bos \Bos\, n. [L., ox, cow.] (Zo["o]l.)
   A genus of ruminant quadrupeds, including the wild and
   domestic cattle, distinguished by a stout body, hollow horns,
   and a large fold of skin hanging from the neck.

Source : WordNet®

Bos
     n : wild and domestic cattle; in some classifications placed in
         the subfamily Bovinae or tribe Bovini [syn: {genus Bos}]

Source : Free On-Line Dictionary of Computing

BOS
     
        1.  {Basic Operating System}.
     
        2.  A data management system written at {DESY} and used
        in some high energy physics programs.
     
        3.  The {Basic Object System}.
     
        (1999-01-20)